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针对一种基于压电激励方式的杯形波动陀螺谐振子,进行理论分析并采用有限元软件,得到了谐振子在工作模态下的轴向与周向振幅分布特性,通过给出挠度函数重点分析了谐振子的径向振幅计算问题;最后对25 mm的杯形波动陀螺谐振子样机进行了试验验证。研究结果表明将谐振子沿轴向的振幅变化作线性处理是合适的,由仿真分析引出的幅值计算函数适用于实际情况分析,同时也为杯形波动陀螺谐振子的参数化建模及结构优化设计提供了依据。
In this paper, a cup-shaped undulatory gyro resonator based on piezoelectric excitation is theoretically analyzed and the axial and circumferential amplitude distribution characteristics of the resonator under the working mode are obtained by finite element software. By giving the focus of the deflection function The calculation of the radial amplitude of the resonator is analyzed. Finally, the cup-shaped undulating gyroscope prototype with 25 mm is tested. The results show that it is suitable to linearize the amplitude of the resonator along the axial direction. The amplitude calculation function derived from the simulation analysis is suitable for the actual situation analysis as well as the parametric modeling and structure of the cup-shaped undulating gyroscope. Optimized design provides the basis.